This can be done solo. Maximize your screen resolution to decrease the chance of random collisions. Start four players, and position the three idle players facing into corners, overlapping them if desired. With luck, you can progress through levels 0 through 4.
  Macintosh  You can edit the keyboard controls for the idle players to use identical keys. If this is done, use your mouse to control the active player while using the cursor keys to move the idle players into a corner. At the end of each level, the three idle planes may have drifted away from the corner. During interludes, have them fly back into the corner.